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Issues

IN THIS ISSUE

SPOTLIGHT

Summary: Mike Levine was awarded the 2015 Edwin Grant Conklin Medal and, at this year's SDB meeting, we spoke to Mike about his career and his research.

REVIEW

Summary: This Review article examines the role of heparan sulfate proteoglycans in vertebrate development and explores the concept of an instructive 'sugar code' for modulating development.

STEM CELLS AND REGENERATION

Highlighted article: Partitioning errors in the zygote, modulated by embryonic transcription, give rise to the unequal distribution of lineage specifiers between blastomeres that subsequently drives lineage specification.

Highlighted article: Lin-28 boosts insulin signaling in adult Drosophila intestinal progenitors in response to nutrients, adjusting the rate of symmetric renewal of stem cells and driving intestinal tissue growth.

Summary: LIF, the cytokine central for ESC self-renewal, supports heterogeneous mouse ESC cultures and early embryo development by stimulating primitive endoderm expansion and paracrine loops, and by blocking epiblast differentiation.

Summary: The chromatin modifier Trithorax regulates a negative feedback loop that controls JNK signaling and Insulin-like Peptide 8 expression in damaged Drosophila imaginal discs.

RESEARCH REPORT

Summary: Robo2 is required in tendons to restrict Slit distribution by promoting its cleavage into a non-diffusible Slit-N, affecting muscle elongation towards tendons in Drosophila embryos.

RESEARCH ARTICLES

Highlighted article: Mouse thyroid C cell precursors arise in foregut endoderm, and not the neural crest, disproving the current concept of a neural crest origin of thyroid neuroendocrine cells.

Highlighted article: Levels of histone H3 methylation and acetylation control the expression of Atoh1, a key regulator of hair cell differentiation, during inner ear development in mice.

Summary: The ATP-binding cassette (ABC) transporter ABCC5 transports cAMP from mesoderm cells to control late invagination of the sea urchin hindgut, revealing a novel developmental role for an ABC transporter.

Summary: Basolateral protrusive activity, and not apical constriction, drives cell intercalation in C. elegans embryos and is regulated by Rac/RhoG and WAVE/WASP.

Summary: TgrB1 and TgrC1 - the molecules that mediate allorecognition in D. discoideum - also control the integration of individual cells into a unified developing organism, acting as a gating step for multicellularity.

Summary: The chromatin-associated protein XND-1 is identified as a key regulator of a novel pathway for primordial germ cell differentiation in C. elegans.

TECHNIQUES AND RESOURCES

Summary: This comprehensive developmental dataset, which combines optical projection tomography and image registration methods, provides a new and powerful staging system for mouse embryos.

Summary: This methodology permits long-term imaging and tracking of NSCs in the adult zebrafish telencephalic neurogenic niche, allowing the frequency, distribution and modes of NSC divisions to be analyzed.

Summary: The CRISPR/Cas9 system is used to target three tumor suppressor genes (PTEN, NF1 and P53), alone and in combination with piggyBac transposase lineage marking, to analyze their function in the developing mouse brain.

CORRECTIONS

ARTICLES OF INTEREST IN OTHER COB JOURNALS

From Journal of Cell Science

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